Car-retapding brake mechanism for coal or ore car tipples



MECHANSWI FOR COAL 0R ORE GAR T|PPI.ES.

\ Feb. 27, 1923,

RICHEY.

CAR RETARDING BRAKE FILED NOV'. 21,1921. l

rl l..

Y Y QN ri M Feb. 27; 1923.,

394346584. W. C. RICHEY. cAR BETARDING BRAKE mEcHANosn/x Fos coAL on oRE cAn TIMES.

' FILED NOV. 21,1921. 2 SHETSSHET2.

' lei-@16,584

llglilillilll lFJILLlL/l C. EVICHEY, OF DENVER, COLGRADO.

can-nn'ranninc sanne irncnenisir ros com; on ons ycan arrrilns.

Application filed November 2l. 192i. Serial No. 516,816.

To all w from t may concern Be it known that l, litri-Linn C. RicrinY,

a `citizen of thellnited States of America, rsiding at the city and-county of Denver and Sta-teef Colorado, have invented a new and useful Car-Retarding Brake `lli/lechanism `Coal orGre Car Tipples, of which the. following is a specifi ation.

invention relates to a car retarding bralfev mechanism for coal or ore cars for tireleslnd the objectsof my invention are:

First: to provide a brake mechanism which is adapted to be located at any desired point in an inclined track, and which can be operated to gradually retard the progress of an approaching coal or ore car, and bring .the same to a full stop. l

Further, to Vprovide a longitudinal brake member which is' supported midway between the rails of a track, and means for gradually raising said brake member to engage brake shoes on the under side of a car passing over said brake member, whereb-y the said car is gradually retarded and then brought to a full stop by the increased frictional contact between said brake member and said brake shoes.

Second: to provide longitudinal brake member located between the rails of atrack.r oppositely inclined cam elements on said brake member and the track bed, rollers interposedbetween said cam elements, and means for gradually. forcing said rollers forward between said cam elements, whereby said brake member is raised to engage shoes on the under side of a car passing over .said brake member, thereby tog-radually .retard and iinally stop the said car.

These objects are accomplished by the mechanism illustrated in the accompanying drawings, in which:

Figure l is a longitudinal sectional view, showing the improved brake mechanism supported between the tracks of a railway, and an ordinary coal car in the act of passing over said mechanism, and provided with brake shoes lin engagement with the brake member of the said mechanism.

Fig. 2,-is a trans-verse sectional view on the line 2 2 of Fig. l.

Fig. 3, Yis a Yplan view of the rail bed, showin the brake mechanism, a portion only .o the longitudinal brake member being shown.

Fig. 4L, .is a plan view, on a reduced scale,

of dumping cars used for such purposes,

and are gravity-operated. They are not provided with` brakes, and as a result, a loaded car gains a considerable momentum in transit., even on .a road of `slight grade. and a common method of slowing up, and finally stopping these cars, is Aby thrusting poles or sprags in between the spokes of the wheels. This is done by attendants` as the cars pass, and is not only a very troublesome and unsatisfactory way of accomplishing the result, but after the car wheels are chocked, the car will frequently slide a considerable distance, thereby wearing flat sur-y faces on the wheels. rlhe present invention is designed to eliminate thesey objectionable expediente, by kproviding a braking mechanism by which cars may be gradually and easily 'brought to a stop., and without vinjury to the same, or danger to the attendant. The braking .mechanism is lmade `up fof connected units which are located midway between the. two tracks. Each unit is preferably about ten feet in length, and as -man'fy` unit-s may be employed as conditions inayv require. roadways of steep grade, requiring more units at the stoppingfterminal than those of onlyslight inclination. As -aillthe units are similar, the description of a single unit will suffice. The rails l, are connected at a given pointby a pair yof parallel channel bars .2, which are arranged approximately eighteen inches apa-rt. and a similar. pair of channel bars 3, also connect the railsat a distance of about live feet from 'the first pair. To the channels 2, are bolted a pair of spaced cams .in the form of inclined tracks 4t. which are parallel with the rails, and have arise or inclination of about four inches in the space between the twochannel bars 2. .the vupward vinclination of the,v said cams or tracks 4, being in the opposite direction to that of the rails 1. fr pair oi' similar inclined cams or tracks 5, are bolted to the channel bars 3, and these cam tracks are in line with the cam tracks d, and ine clinein the same direction. A pair ot spaced bars 6, extend'betweenthe cam tracks a and 5, and beyond them at each end, thel length of said bars being about ten feet.` Shafts 7 and 8 are mounted in these bars, and eX- tend beyond-them on each siderand on the endV portions of the shaft 7, are' loosely mounted rollers 9, which are positionedto rest upon and roll upon the cam tracks l, and these rollers are flanged on their outer .ends as shown. lollers 10 are also loosely mounted on the. shaiitl', adjoining-j the rollers 9, and the inner ends oit the rollers 10. are vilangedr and lie next the bars V6. The shaft 8, also carries loosely mounted rollers 1l.. flann'ed on theirouter ends. and adated to `rest upon and to ride upon the cam tracks 5, and adjoining these rollers, are loosely mounted rollers 1,2, which are lianged on tlieirinner ends.

The forward end portions ot the bars 6, are bent inward `toward each other, so as to lie parallel and close together, as shown at 13, and between the ends 13, extends a lever arm 111, which is pivotally connected to the ends 13, by.' a bolt 15, rlhe lever arm 14, projects from a shaft16, which lies beneath the rails 1, and is mounted in suitable bearings 17, which lie between and are secured to the adjacent cross ties. One end ol the shaft 16, extends beyond the adjacent rail, and is provided with a vertically disposed hand lever 18, and by swinging this hand lever in thedirection of the arrow shown in .Figure 1, the bars 6, are drawn forward, and the' rollers 9 and 11, ride the inclined tracks l and 5, respectively, for a purpose tobe hereinafter fully explained.

The rear ends of the roller-supporting bars 6, are adapted to be pivotally connected tosimilar bars 6A, by links 6B, and the rear vend of the bars 6^, are similarly connected to bars 6C, and so on for as many pairs of bars as theV road conditions may require. Each additional pair of bars is provided with sha-tts having rollers thereon, the same as described in connection with .the bars 6, and the vlink connection between the 4adjoining endsiot the several pairs of bars per- `initstliein to conform to variations in the general inclination-of the railbed, and enables them also to be operated by a single shaft 16, and a hand lever 18, as will be rollers 10 and 12, and is arranged and constructed in the VVfollowing manner:

Thisbrake B, comprises parallel bars. 19, oi about the same length as the roller-supinclined, as shown.

porting bars 6 and spaced a distance equal to the distance between the rollers 10, or

the rollers 12, their Aends being beveled or rlhe bars 19, are connected by a sheet iron plate 20, which is secured to the under sides of the said bars, and their upper sidesare faced'with metal strips 21.- To the under side of the brake l, are secured pairs or" cam tracks 22 and 23, similar in outline to the cam tracks 4 and 5, but theyvv are resilient, and yield under pressure, while the tracks l and 5, are solid and un jielding. The cam tracks 22, rest on the rollers 10, and the cam tracks 23,7rest on the rollers 12, and the tracks 22 and23, are oppositely inclined with respect to the tracks l and Arms 24, 'are pivotally connected. at their upper ends to a rod `25, which is secured to the under side oft' the brake, and the opposite ends oi? these arms are pivotally connected to end portions ol the cani tracks 5; rEhe arms 24.-. permit an up and down movement ot the brake B, but prevent the 4same from sliding` forward on its supporting rollers 10 and 12. l

Vrlhe brake B, lies on a horizontal plane and at a height above the rails 1, slightly less than the height of the axles 26, vthe bars 27, which pass over the said brake, so

that when the brake is in its normal hori-K zontal position, theaxles oi' a car passing'- begin, an attendant swings the lever 18, inV

the direction oi the arrow, and the bars 6, thereby moved. forward, carrying' with them the rollers 9, 10,'` 11 vand 12. V`The rollers 9 and 11. ride upon the cam tracks 4l and 5 respectively, and therollers 1Oand 12, are thereby forced forward under the cam tracks 22 and 23, respectively, which are secured to the bottom of the brake B,l and the brake is thereby raised and torce-d into 'frictional enga-gement with the brake shoes 28. on the under side of the car. The brake is applied with an increasing pressure, and as the car mores forward, the frictional resistance offered by the brake, Vg@gradually slows the car down until it comes to a stop The. cam tracks 22 and 23, turn therollers 10 and 12, in one direction, and the cam tracks l and 5,y turn therollersr9 and 11 in -the opposite direction to the rollers 10 and hence,A the necessity for two sets of loosely' mount-ed rollers on eachV shaft.

rif ed ineen-ea lll hen the lever i8, is swung back to its normal or non-bral' g position, tbe backrd and downward movement ot the rollers permits the brake B, to drop down by gravity out ot engagen'ient with the brake shoes 28, on the car, 'and the. said rollers, in conjunction with the arms 24;. support the brake in this position during the interval between the arrival ot -the cars at the terminal.

lilaving` described 'iy invention, what l claim as new and desire to secure by Letters Patent, is:

l. The combination with a section ot railway tracks and cars on said tracks having;

ake shoes on their bottom sides'D ot a lonudinal brake between said tracks, inclined n anbers on the under side ot said brake, roller supports beneath said inclined members, means tor moving said roller supports v,Forward beneath said inclined members, whereby said brake is raised into rict-ional engagement with the brake shoes ot a car passing over said brake7 and means Jrior preventing' endwise sliding' movement ot said brake.

Q. rEhe combination with a section ot railway tracks and cars on said tracks having brake shoes on their bottom sides; ot a lon- L,itudinal brake between said tracks havingr resilient inclined cams on its under side, oppositely inclined cams on the track bed, shafts and rollers thereon tor engaging said oppositely inclined cams` means tor moving said shatts J,orward, whereby said rollers act to litt said brake into trictional enga-gement with the brake shoes on a car passingv over said brake, and means tor preventing endwise sliding; movement ot said brake.

The combination with a section ot rail* way tracks and cars on said tracks havinirj l ake shoes on their bottom sides', ot bars connecting' said tracks, inclined cams secured to said cross bars, parallel longitual bars estendingbetween said cams and i s supported in said longitudinal bars, pairs of loosely mounted rollers on said tts, which rest on said inclined cams, a onoitndinal brake having inclined cams on Cla under side oppositely pitched from the c mentioned cams, and other pairs ot rollers on said shafts upon which said latter cams rest, and means for moving' said bars `forward, whereby the rollers caused to reise the brake into trictional engagement with the brake shoes on a car passing over said brake, and means tor preventing end wise sliding; movement of' said brake.

et. rhe combination with a section ot railway tracks and cars on said tracks having brake shoes on their bottom sides; ot cross bars connecting` said tracks, inclined cam tracks secured to said cross bars, parallel longitudinal bars between said cam tracks, and shatts supported therein, pairs ot rollers on said shat'ts which rest on said cam tracks.` a shaft, a lever arm thereon connected to said parallel bars, and a hand lever tor turning said shatt, whereby the bars are d awn upon and the rollers ride up said inclined cam tracks', a longitudinal brake comprising' tracks on the under side ot said brake which are oppositely pitcned 'from the irst men-` tioned cam tracks, other rollers on said shafts on which said latter cam tracks rest, the upward movement ot the lirst mentioned rollers on the tirst mentioned cam tracks, and ot' the lastmentioned rollers beneath the last mentioned cam tracks acting;Y to raise said brake into trictional engagement with the brake shoes on a car passing over said brake, and pivotally connected to said brake, and to a fixed object on the rail bed.A tor prevent-ing endwise sliding movement ot' the brake.

5. ln mechanism ot the character described, a brake comprising' parallel bars, a metal plate connecting said bars, said bars having inclined or beveled ends and pairs ot resilient inclined cam tracks on the under side ot said brake near the ends thereof.

6. ln mechanism ot the character described, a brake comprising parallel wooden bars having beveled ends, said bars being' faced with metal strips,a metal plate connectingv said bars, and pairs ot resilient inclined cam tracks on the under side ot said brake.

7. The combination with railway tracks, cross bars connecting the same, and inclined cam tracks secured to said cross bars, ot a longitudinal brake above said cam tracks having inclined cam tracks on its under side oppositely pitched 'from the tirst mentioned cam tracks, the tormer and latter cam tracks forming wedge shaped space beH tween them, means interposed in said wedge shaped space, and means tor moving' said interposed means forward, whereby the said brake is raised, and cars on said railway tracks having; brake shoes on their bottom sides which are adapted to be engaged trictionally by said brake, as said cars pass over said brake. l

8. rlhe combination with'` railway tracks, stationary inclined cams between said railway tracks and cars on said railway tracks having' brake shoes secured to their bottom sides; oit parallel bars extending between said inclined cams, and shafts supported therein, a pair ot independent rollers loosely mounted on the outer portion ot each shaft, the outer rollers of each pair resting' on said inclined cam tracks; a longitudinal brake having;- inclined cam tracks on its under side which rest on the inside rollers ot each pair of rollers, said latter cam tracks being oppositely pitched with respect to the tormer cam tracks, a lever mechanism tor drawing connected parallel bars, cam' iin die rollersnpporting bars forward, whereby ille outer rollers or each pair of' rollers ride up on the first mentioned cam tracks, and the inner rollers move forward under the (fam tracks on the brake7 thereby lifting the said brake into friotional engagement with l[he brake shoes on the under side of :L car passing over said brake7 and pivoted arms connected to said brake and'to :i fixed object 1,446, ser

onV the rail bed for ing movement of the brake.

' In testimony whereof I alli); my signature in presence of two Witnesses.

, WILLIAM. o. Broiler.

Witnesses:

G. SARGENT ELLIOTT, ELrzABETH SMITH.

preventing enflwise sli llo 

